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authorMartin Schwidefsky <schwidefsky@de.ibm.com>2011-12-27 05:27:15 -0500
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2011-12-27 05:27:12 -0500
commitc5328901aa1db134325607d65527742d8be07f7d (patch)
tree9643cf253b758d16918cd8591bd9dde022c39673 /arch/s390/include/asm/lowcore.h
parent3b7f993394db7c446c251fb8eb32ec501a330acc (diff)
[S390] entry[64].S improvements
Another round of cleanup for entry[64].S, in particular the program check handler looks more reasonable now. The code size for the 31 bit kernel has been reduced by 616 byte and by 528 byte for the 64 bit version. Even better the code is a bit faster as well. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/lowcore.h')
-rw-r--r--arch/s390/include/asm/lowcore.h142
1 files changed, 76 insertions, 66 deletions
diff --git a/arch/s390/include/asm/lowcore.h b/arch/s390/include/asm/lowcore.h
index 3b97964e0e96..707f2306725b 100644
--- a/arch/s390/include/asm/lowcore.h
+++ b/arch/s390/include/asm/lowcore.h
@@ -97,47 +97,52 @@ struct _lowcore {
97 __u32 gpregs_save_area[16]; /* 0x0180 */ 97 __u32 gpregs_save_area[16]; /* 0x0180 */
98 __u32 cregs_save_area[16]; /* 0x01c0 */ 98 __u32 cregs_save_area[16]; /* 0x01c0 */
99 99
100 /* Save areas. */
101 __u32 save_area_sync[8]; /* 0x0200 */
102 __u32 save_area_async[8]; /* 0x0220 */
103 __u32 save_area_restart[1]; /* 0x0240 */
104 __u8 pad_0x0244[0x0248-0x0244]; /* 0x0244 */
105
100 /* Return psws. */ 106 /* Return psws. */
101 __u32 save_area[16]; /* 0x0200 */ 107 psw_t return_psw; /* 0x0248 */
102 psw_t return_psw; /* 0x0240 */ 108 psw_t return_mcck_psw; /* 0x0250 */
103 psw_t return_mcck_psw; /* 0x0248 */
104 109
105 /* CPU time accounting values */ 110 /* CPU time accounting values */
106 __u64 sync_enter_timer; /* 0x0250 */ 111 __u64 sync_enter_timer; /* 0x0258 */
107 __u64 async_enter_timer; /* 0x0258 */ 112 __u64 async_enter_timer; /* 0x0260 */
108 __u64 mcck_enter_timer; /* 0x0260 */ 113 __u64 mcck_enter_timer; /* 0x0268 */
109 __u64 exit_timer; /* 0x0268 */ 114 __u64 exit_timer; /* 0x0270 */
110 __u64 user_timer; /* 0x0270 */ 115 __u64 user_timer; /* 0x0278 */
111 __u64 system_timer; /* 0x0278 */ 116 __u64 system_timer; /* 0x0280 */
112 __u64 steal_timer; /* 0x0280 */ 117 __u64 steal_timer; /* 0x0288 */
113 __u64 last_update_timer; /* 0x0288 */ 118 __u64 last_update_timer; /* 0x0290 */
114 __u64 last_update_clock; /* 0x0290 */ 119 __u64 last_update_clock; /* 0x0298 */
115 120
116 /* Current process. */ 121 /* Current process. */
117 __u32 current_task; /* 0x0298 */ 122 __u32 current_task; /* 0x02a0 */
118 __u32 thread_info; /* 0x029c */ 123 __u32 thread_info; /* 0x02a4 */
119 __u32 kernel_stack; /* 0x02a0 */ 124 __u32 kernel_stack; /* 0x02a8 */
120 125
121 /* Interrupt and panic stack. */ 126 /* Interrupt and panic stack. */
122 __u32 async_stack; /* 0x02a4 */ 127 __u32 async_stack; /* 0x02ac */
123 __u32 panic_stack; /* 0x02a8 */ 128 __u32 panic_stack; /* 0x02b0 */
124 129
125 /* Address space pointer. */ 130 /* Address space pointer. */
126 __u32 kernel_asce; /* 0x02ac */ 131 __u32 kernel_asce; /* 0x02b4 */
127 __u32 user_asce; /* 0x02b0 */ 132 __u32 user_asce; /* 0x02b8 */
128 __u32 current_pid; /* 0x02b4 */ 133 __u32 current_pid; /* 0x02bc */
129 134
130 /* SMP info area */ 135 /* SMP info area */
131 __u32 cpu_nr; /* 0x02b8 */ 136 __u32 cpu_nr; /* 0x02c0 */
132 __u32 softirq_pending; /* 0x02bc */ 137 __u32 softirq_pending; /* 0x02c4 */
133 __u32 percpu_offset; /* 0x02c0 */ 138 __u32 percpu_offset; /* 0x02c8 */
134 __u32 ext_call_fast; /* 0x02c4 */ 139 __u32 ext_call_fast; /* 0x02cc */
135 __u64 int_clock; /* 0x02c8 */ 140 __u64 int_clock; /* 0x02d0 */
136 __u64 mcck_clock; /* 0x02d0 */ 141 __u64 mcck_clock; /* 0x02d8 */
137 __u64 clock_comparator; /* 0x02d8 */ 142 __u64 clock_comparator; /* 0x02e0 */
138 __u32 machine_flags; /* 0x02e0 */ 143 __u32 machine_flags; /* 0x02e8 */
139 __u32 ftrace_func; /* 0x02e4 */ 144 __u32 ftrace_func; /* 0x02ec */
140 __u8 pad_0x02e8[0x0300-0x02e8]; /* 0x02e8 */ 145 __u8 pad_0x02f8[0x0300-0x02f0]; /* 0x02f0 */
141 146
142 /* Interrupt response block */ 147 /* Interrupt response block */
143 __u8 irb[64]; /* 0x0300 */ 148 __u8 irb[64]; /* 0x0300 */
@@ -229,57 +234,62 @@ struct _lowcore {
229 psw_t mcck_new_psw; /* 0x01e0 */ 234 psw_t mcck_new_psw; /* 0x01e0 */
230 psw_t io_new_psw; /* 0x01f0 */ 235 psw_t io_new_psw; /* 0x01f0 */
231 236
232 /* Entry/exit save area & return psws. */ 237 /* Save areas. */
233 __u64 save_area[16]; /* 0x0200 */ 238 __u64 save_area_sync[8]; /* 0x0200 */
234 psw_t return_psw; /* 0x0280 */ 239 __u64 save_area_async[8]; /* 0x0240 */
235 psw_t return_mcck_psw; /* 0x0290 */ 240 __u64 save_area_restart[1]; /* 0x0280 */
241 __u8 pad_0x0288[0x0290-0x0288]; /* 0x0288 */
242
243 /* Return psws. */
244 psw_t return_psw; /* 0x0290 */
245 psw_t return_mcck_psw; /* 0x02a0 */
236 246
237 /* CPU accounting and timing values. */ 247 /* CPU accounting and timing values. */
238 __u64 sync_enter_timer; /* 0x02a0 */ 248 __u64 sync_enter_timer; /* 0x02b0 */
239 __u64 async_enter_timer; /* 0x02a8 */ 249 __u64 async_enter_timer; /* 0x02b8 */
240 __u64 mcck_enter_timer; /* 0x02b0 */ 250 __u64 mcck_enter_timer; /* 0x02c0 */
241 __u64 exit_timer; /* 0x02b8 */ 251 __u64 exit_timer; /* 0x02c8 */
242 __u64 user_timer; /* 0x02c0 */ 252 __u64 user_timer; /* 0x02d0 */
243 __u64 system_timer; /* 0x02c8 */ 253 __u64 system_timer; /* 0x02d8 */
244 __u64 steal_timer; /* 0x02d0 */ 254 __u64 steal_timer; /* 0x02e0 */
245 __u64 last_update_timer; /* 0x02d8 */ 255 __u64 last_update_timer; /* 0x02e8 */
246 __u64 last_update_clock; /* 0x02e0 */ 256 __u64 last_update_clock; /* 0x02f0 */
247 257
248 /* Current process. */ 258 /* Current process. */
249 __u64 current_task; /* 0x02e8 */ 259 __u64 current_task; /* 0x02f8 */
250 __u64 thread_info; /* 0x02f0 */ 260 __u64 thread_info; /* 0x0300 */
251 __u64 kernel_stack; /* 0x02f8 */ 261 __u64 kernel_stack; /* 0x0308 */
252 262
253 /* Interrupt and panic stack. */ 263 /* Interrupt and panic stack. */
254 __u64 async_stack; /* 0x0300 */ 264 __u64 async_stack; /* 0x0310 */
255 __u64 panic_stack; /* 0x0308 */ 265 __u64 panic_stack; /* 0x0318 */
256 266
257 /* Address space pointer. */ 267 /* Address space pointer. */
258 __u64 kernel_asce; /* 0x0310 */ 268 __u64 kernel_asce; /* 0x0320 */
259 __u64 user_asce; /* 0x0318 */ 269 __u64 user_asce; /* 0x0328 */
260 __u64 current_pid; /* 0x0320 */ 270 __u64 current_pid; /* 0x0330 */
261 271
262 /* SMP info area */ 272 /* SMP info area */
263 __u32 cpu_nr; /* 0x0328 */ 273 __u32 cpu_nr; /* 0x0338 */
264 __u32 softirq_pending; /* 0x032c */ 274 __u32 softirq_pending; /* 0x033c */
265 __u64 percpu_offset; /* 0x0330 */ 275 __u64 percpu_offset; /* 0x0340 */
266 __u64 ext_call_fast; /* 0x0338 */ 276 __u64 ext_call_fast; /* 0x0348 */
267 __u64 int_clock; /* 0x0340 */ 277 __u64 int_clock; /* 0x0350 */
268 __u64 mcck_clock; /* 0x0348 */ 278 __u64 mcck_clock; /* 0x0358 */
269 __u64 clock_comparator; /* 0x0350 */ 279 __u64 clock_comparator; /* 0x0360 */
270 __u64 vdso_per_cpu_data; /* 0x0358 */ 280 __u64 vdso_per_cpu_data; /* 0x0368 */
271 __u64 machine_flags; /* 0x0360 */ 281 __u64 machine_flags; /* 0x0370 */
272 __u64 ftrace_func; /* 0x0368 */ 282 __u64 ftrace_func; /* 0x0378 */
273 __u64 gmap; /* 0x0370 */ 283 __u64 gmap; /* 0x0380 */
274 __u8 pad_0x0378[0x0380-0x0378]; /* 0x0378 */ 284 __u8 pad_0x0388[0x0400-0x0388]; /* 0x0388 */
275 285
276 /* Interrupt response block. */ 286 /* Interrupt response block. */
277 __u8 irb[64]; /* 0x0380 */ 287 __u8 irb[64]; /* 0x0400 */
278 288
279 /* Per cpu primary space access list */ 289 /* Per cpu primary space access list */
280 __u32 paste[16]; /* 0x03c0 */ 290 __u32 paste[16]; /* 0x0440 */
281 291
282 __u8 pad_0x0400[0x0e00-0x0400]; /* 0x0400 */ 292 __u8 pad_0x0480[0x0e00-0x0480]; /* 0x0480 */
283 293
284 /* 294 /*
285 * 0xe00 contains the address of the IPL Parameter Information 295 * 0xe00 contains the address of the IPL Parameter Information
generated by cgit v1.2.2 (git 2.25.0) at 2025-02-21 05:47:25 -0500